The Number

20420

Twenty Thousand Four Hundred and Twenty

In Base 18 Octodecimal Is

390818

The numbers with a 18 subscript use Base 18 Octodecimal notation.

For more familiar numbers: See Twenty Thousand Four Hundred and Twenty in Base 10 Decimal

Nearby Numbers

Positive, nonzero integers within three units

20417
390518
Twenty Thousand Four Hundred and Seventeen in Base 18 Octodecimal
20418
390618
Twenty Thousand Four Hundred and Eightteen in Base 18 Octodecimal
20419
390718
Twenty Thousand Four Hundred and Nineteen in Base 18 Octodecimal
20421
390918
Twenty Thousand Four Hundred and Twenty-One in Base 18 Octodecimal
20422
390a18
Twenty Thousand Four Hundred and Twenty-Two in Base 18 Octodecimal
20423
390b18
Twenty Thousand Four Hundred and Twenty-Three in Base 18 Octodecimal

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

2.0420e4

Reciprocal

A number multiplied with its reciprocal is one.

0.000529b71247cfac18

The reciprocal of 20420 in Base 18 Octodecimal.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 390818 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Twenty thousand four hundred and twenty is a composite number with 12 total factors (including 1 and itself).   See primes in Base 18 Octodecimal

A Composite

Composites have more than just these two factors.

Twenty thousand four hundred and twenty is a composite number with 12 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number twenty thousand four hundred and twenty has the following 3 prime factors:

2
218
Two in Base 18 Octodecimal
5
518
Five in Base 18 Octodecimal
1021
32d18
One Thousand and Twenty-One in Base 18 Octodecimal

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

2182 · 5181 · 32d181 = 390818

Base Conversions

The number twenty thousand four hundred and twenty in 35 different bases